US2888945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacity level control and improved probe
Assignee: Robertshaw Controls Co
•
Filing: 1955-12-21
•
Granted: 1959-06-02
•
Expires: 1975-12-21
Abstract
No abstract record available.
Inventors
- 👤 Marlow Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:27
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263; G01F23/265; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2627539A
Cited
US2529796A
Cited
US2477511A
Cited
US2600928A
Cited
GB723653A
Cited
US2657579A
Cited
US2721267A
Cited
US2801339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |